Stove-ventilator



(No Model.)

P. FRASHER. STOVB VENTILATOR.

Patented July 13,

Nimh Ta'rns ATnNr OFFICE.

FRANK FRASHER, OF IRONTON, OIIIO.

STOVE-VENTI L ATO R.

SPECIFICATION forming part of Letters Patent No. 586,174, dated July 13,1897.

Application filed March 30, 1897. Serial No. 629,921. (No inodelf To all'Lf/7mm www cw'wbf 12 represents a iiat disk provided on its Be it knownthat I, FRANK FRASHER, acitiouter face with an integral flat handle 13,Zen of the United States, residing at Ironton, and its periphery isformed with converging in the county of Lawrence and State of Ohio,edges 111 14, adapted to snugly engage the 5 have invented certain newand useful Iincorresponding converging walls 34 3 of the 55 provementsin Stove-Ventilators, and I do orifice 2 in the frame-plate 1, and l5repreherebydeclarethe following tobeafull, clear, sents an annularradial projecting fiange and exact description of the invention, suoliwhich overlaps the outside edge ofthe oriice as will enable othersskilledin the art to which 2 and snugly fils the contiguous face of theio it appertains to make and use the saine. plate 1. 6o

My invention has relation to adjustable The inner face of the disk isformed with ventilators, and more particularly to that a central shank1G, the outer end of which class employed in ovens or other closedchamterminates in a transverse flat plate 17, formed bers, airducts, andthe like; and the object with a projecting lip 18, and oppositely-disi 5is to provide a simple, convenient, and effectposed radial shoulders 1919, having reversely- 65 ive device for this purpose. beveled edges 2O20, which are arranged to To these ends the novelty consists in theengage the correspondingly-inclined planes construction, combination,and arrangement 10 10 on the bracket 4 to draw the disk 12 of the same,as will be hereinafter more parinto intimate contact with the Walls ofthe zo ticularly pointed out in the claims. orifice 2 and form anair-tight joint. 7o

In the accompanying drawings the same When desirable to admit airthrough the reference-characters indicatethe same parts orifice 2, thedisk is turned to the left by of the invention. j means of its handle torelease the shoulder Figure 1 is an external perspective view of 19 fromengagement with the inclined planes 2 5 my improved adjustableventilator. Fig. 2 10 and bring it into alinement with the radial 75 isa perspective view taken from the inside recesses 8 8 in the bracket 4,so as to permit of the ventilator. Fig. 3 is a horizontal secthe disk tobe withdrawn from the orifice 2 tion, and Fig. 4 a vert-ical section,showing and permit the passage of air, the amount of the ventilatoropen. air so admitted corresponding to the distance 3o lrepresents theframe-plate,`provided witha at which the disk is removed, and conse- 8ocircular orifice 2, having converging walls 3 3. quently the same can beperfectly regulated.

4 represents a parallel bracket extending When the disk is withdrawn,the plate 17 across the inside of orifice 2 and having its remains inthe recesses 8 8 and rests upon angular arms 5 5 secured to .thecontiguous the web 11, which supports the disk in its 3 5 face of saidplate by screws G 6. adjusted position, and when it is necessary 85 Thecentral portion of the bracket 4 is to entirely detach the disk from theplate 1 formed with a transverse circular orifice 7, it is firstWithdrawn to full limit or until the arranged concentric with theorificeQ in the lip lScomes in contact with the bracket 4,

. plate, andB 8 represent two oppositely disand the handle 13 is thenraised a sufcient io posed and alined radial recesses communidistance topermit the lip to pass through the 9o eating with the central orifice 7.9 9 reprerecesses 8 S in the bracket, thus releasing sent two parallellugs formed integral with the disk entirely from the plate. the outerface of the bracket and on opposite Vhile my ventilator is primarilyintended sides of the orifice 7, and their outer faces and particularlyadapted for stoves and the 45 are formed with reversely-arrangedinclined like, its use is by no means confined to the 95 planes 10 10.saine, as it will be found very convenient in The inner face of thebracket is provided the saloons and state-rooms aboard ship, storwith anintegral web 11, which forms a conage and preserving tanks and chambers,and, tinuation of the lower half of the orifice 7 in fact, all kinds ofclosed receptacles requir- 5o and radial recesses 8 S. ing Ventilating.roo

Although I have specifically described the construction and relativearrangement of the several elements of my invention, I do not desire tobe confined to the same, as such changes or modifications may be made asclearly fall -Within the scope of my invention Without departing fromthe spirit thereof.

Having thus fully described my invention, What I claim as new, anddesire to secure by Letters Patent, is-

1. An adjustable ventilator of the class described comprising a plateprovided with a circular orifice, a perforated bracket secured to saidplate and extending across said orifice, and provided with reverselyarranged integral inclined planes 10 10, in combination with a diskadapted to close said orifice and formed with an integral shank andplate 17 formed with oppositely-disposed radial shoulders 19 19 havingreversely-beveled edges 2O 20, adapted to pass through said perforationand engage said inclined planes on the bracket to removably secure saiddisk in the orifice detachable disk 12 formed with the converging edges14 14 and annular iange 15, and the integral shank 1G and rectangularplate 17 provided with the projecting lip 1S, and reversely-bevelededges 2O 2O substantially as and for the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.

FRANK FRASHER.

Vitnesses:

MATTIE ELLIS, BIRDIE M. FosTER.

